From b14f37c73f4906d659706662627fd3d5c5732f92 Mon Sep 17 00:00:00 2001
From: Camelia Groza <camelia.groza@nxp.com>
Date: Tue, 11 Jul 2023 15:49:15 +0300
Subject: [PATCH] board: freescale: t2080rdb: implement get_serial_clock

The serial clock is provided by the get_serial_clock() callback on PPC
under DM_SERIAL. Use the same method to compute the clock as for
non-DM_SERIAL use cases.

Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 board/freescale/t208xrdb/t208xrdb.c | 8 ++++++++
 include/configs/T208xRDB.h          | 4 +++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/board/freescale/t208xrdb/t208xrdb.c b/board/freescale/t208xrdb/t208xrdb.c
index 13a2d3dcde..e33e5d082d 100644
--- a/board/freescale/t208xrdb/t208xrdb.c
+++ b/board/freescale/t208xrdb/t208xrdb.c
@@ -20,6 +20,7 @@
 #include <asm/fsl_law.h>
 #include <asm/fsl_serdes.h>
 #include <asm/fsl_liodn.h>
+#include <clock_legacy.h>
 #include <fm_eth.h>
 #include "t208xrdb.h"
 #include "cpld.h"
@@ -42,6 +43,13 @@ u8 get_hw_revision(void)
 	}
 }
 
+#if CONFIG_IS_ENABLED(DM_SERIAL)
+int get_serial_clock(void)
+{
+	return get_bus_freq(0) / 2;
+}
+#endif
+
 int checkboard(void)
 {
 	struct cpu_type *cpu = gd->arch.cpu;
diff --git a/include/configs/T208xRDB.h b/include/configs/T208xRDB.h
index f213d2de77..0b9dde3e0e 100644
--- a/include/configs/T208xRDB.h
+++ b/include/configs/T208xRDB.h
@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright 2014 Freescale Semiconductor, Inc.
- * Copyright 2020-2021 NXP
+ * Copyright 2020-2023 NXP
  */
 
 /*
@@ -215,7 +215,9 @@
 /*
  * Serial Port
  */
+#if !CONFIG_IS_ENABLED(DM_SERIAL)
 #define CFG_SYS_NS16550_CLK		(get_bus_freq(0)/2)
+#endif
 #define CFG_SYS_BAUDRATE_TABLE	\
 	{300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200}
 #define CFG_SYS_NS16550_COM1 (CFG_SYS_CCSRBAR+0x11C500)
-- 
2.39.5